n Enables Safe Board Insertion and Removal from Live Systems n Protects System from Overload and Short-Circuit at Board n Validates Input Supply Against UV/OV Lockout Thresholds n Provides Board Voltage, Current, Power, and Energy Telemetry n Controls Supply Voltages Up to ±1000V or Load Currents Up to 200A n Over 500 Million Hot Swap Controllers Shipped

Mission-critical servers and communication equipment must continue operating even as circuit boards and cards are plugged in or pulled out for maintenance or capacity adjustment. Hot swap controllers enable board insertion and removal from live systems by soft-starting the supply, avoiding connector sparks, backplane supply glitches, and card resets. In addition to inrush current control, hot swap controllers provide fault isolation with a circuit breaker, undervoltage (UV) and overvoltage (OV) lockout, and digital telemetry of board electrical parameters. Analog Devices delivers leading-edge hot swap innovations and tough, dependable protection for high availability systems.

Inrush Control Circuit Breaker Telemetry UV/OV Protection

VIN

GND

DC/DCENABLE

CURRENTSENSE

FAULTTIMER

NFETDRIVE

VOUTTO LOAD

UV

OV

POWERGOOD

OUTPUTMONITORHOT SWAP

CONTROLLER

BACKPLANE PLUG-IN BOARD

CONN

ECTO

R 1

CONN

ECTO

R 2

20ms/DIV

CONTACTBOUNCE

LOADENABLE

INRUSHCURRENT

SOFT-START

10V/

DIV

0.2A

/DIV

10V/

DIV

VIN

IIN

VOUT

POWERGOOD (PG)

Year First-to-Market Hot Swap Controller

1996 Dual Supply Controller2001 Triple Supply Controller2004 48V Controller with Telemetry2005 −48V Controller with Telemetry2006 12V Controller with Telemetry2014 Lowest (4µA) Quiescent Current2015 Integrated Controller with Tested SOA2015 SOA Sharing Controller with EEPROM2017 5kVRMS Isolated Controller

HOT SWAP CONTROLLERS

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n Monitors Supply Voltage, Current, Power, Energy, and Temperature

n I2C/SMBus/PMBus Digital Interface for Configuration and Data Readback

n ADC with Low Total Unadjusted Error (TUE) n Internal EEPROM for Nonvolatile Configuration and

Fault Log n Resistor- or Digitally-Adjustable Circuit Breaker and

Undervoltage/Overvoltage Thresholds

Hot Swap Controllers with Digital Telemetry

Single Positive Supply Hot Swap Controllers

n Controls Supply in the 0V to 80V Range n Load Soft-Start with Ramped Output or in Current Limit n Circuit Breaker (CB) for Overcurrent Protection n Adjustable Circuit Breaker Threshold and Delay n Current Limiting (CL) Until CB Opens After Fault Timer Expires n Adjustable Undervoltage/Overvoltage Thresholds

VIN2.9V to 33V

VOUT200A

Parallel MOSFETsShare SOA

I2C/SMBus

LTC4282

ILOAD

VIN/VOUT

GPIO

DUAL12-/16-BIT

ADC

EEPROM

POWERMULTIPLIER &

ENERGY ACCUMULATOR

VOUTVIN

2.7V to 16.5V

FaultTimer

LTC4210

Device Supp

lies

VIN

ADC Monitor

EEPR

OM

PMBu

s

FeaturesDemo Board

Package-Pins(mm × mm)Bits TUE V I P E T

LTC4215/80 1 2.9V to 15V 8 2% • • dI/dt Controlled Inrush DC874 4 × 5 QFN-24, SSOP-16LTC4281 1 2.9V to 33V 12/16 0.7% • • • • • Adjust Thresholds Digitally DC2278 4 × 5 QFN-28ADM1278 1 4.5V to 20V 12 0.35% • • • • • • Resistor Adjustable CL EVAL– 5 × 5 LFCSP-32LTC4282 1 2.9V to 33V 12/16 0.7% • • • • • LTC4281 + SOA Sharing DC2024 5 × 5 QFN-32ADM1272 1 16V to 80V 12 0.4% • • • • • • Survives 120VIN EVAL– 7 × 8 LFCSP-48LTC4260 1 8.5V to 80V 8 2% • • Survives 100VIN DC786 5 × 5 QFN-32, SO/SSOP-24ADM1075 1 –35V to >–80V 12 0.8% • • • • • Floating Topology EVAL– 5 × 5 LFCSP-28, TSSOP-28LTC4261 1 −12V to >−80V 10 1.8% • • Floating Topology DC998 4 × 5 QFN-24, SSOP-28LTC4283/84 1 –9V to >−80V 16 0.7% • • • • • LTC4284: SOA Sharing DC2480/70 5 × 7 QFN-38/5 × 8 QFN-44LTM9100 1 –1000V to 1000V 10 1.8% • • 5kVRMS Isolation DC2423 22 × 9 × 5.16 BGALTC4222 2 2.9V to 29V 10 1% • • dI/dt Controlled Inrush DC1134 5 × 5 QFN-32, SSOP-36LTC4245 4 ±12V, 5V, 3.3V 8 2% • • For cPCI/PCIe, Sequencing DC985 5 × 7 QFN-38, SSOP-36

Device VIN IQ UV OV CL PG FeaturesDemo Board

Package-Pins(mm × mm)

LTC®4216 0V to 6V 1.68mA • • • Controls 0V, CL Above CB Level NA 4 × 3 DFN-12, MSOP-10LTC4210 2.7V to 16.5V 655µA • • Simple, Small, 6-Pin SOT-23 DC628 TSOT23-6ADM1170/1/2 1.6V to 16.5V 670µA • • Separate VCC/Current Monitor/Aux Comp EVAL– TSOT-8LTC4211 2.5V to 16.5V 1mA • • • Start-Up CL, 2-Level Slow, and Fast CB DC536 SO-8, MSOP-8/10LTC4218 2.9V to 26.5V 1.68mA • • • • 15mV±5% CB, Current Monitoring DC1052 5 × 3 DFN-16, SSOP-16LTC4231 2.7V to 36V 4µA • • • • 4µA IQ, 0.3µA ISHDN, Survives ±40VIN DC2161 3 × 3 QFN-12, MSOP-12LT®4256 10.8V to 80V 1.84mA • • • • Survives 100VIN, Signals Light Load DC1354 SO-8, SSOP-16

Negative Supply Hot Swap Controllers

n Controls Supply in the 0V to Above −80V Range n Floating Topology with Internal Shunt Regulator Enables Very

High Voltage Operation n 3-Stage Overcurrent Protection (OCP): Filtered Circuit Breaker,

Current Limit, Fast Comparator n Adjustable Circuit Breaker Threshold and Delay n Soft-Started Current Limit n Telecom-Compatible Undervoltage/Overvoltage Thresholds

–48VIN VOUT

RTNDropping Resistor toInternal Shunt Regulator

LTC4252OV

UV

SS

TIMER

VIN PGPG

Device VIN

Max ILOAD RON UV OV CL PG

Tested SOA

Pin Compatible

Temp Range

Demo Board

Package-Pins(mm × mm)

LTC4217 2.9V to 26.5V 1.85A 33mΩ • • • • LTC4232 –40°C to 125°C DC1051 5 × 3 DFN-16, TSSOP-20LTC4219 5V or 12V 5A 33mΩ • • • NA –40°C to 85°C DC1594 5 × 3 DFN-16LTC4232 2.9V to 15V 5A 33mΩ • • • • LTC4217 –40°C to 85°C DC1886 5 × 3 DFN-16LTC4233 2.9V to 15V 10A 10mΩ • • • • • LTC4234 –40°C to 125°C DC2116 5 × 9 QFN-38LTC4234 2.9V to 15V 20A 4mΩ • • • • • LTC4233 –40°C to 125°C DC2116 5 × 9 QFN-38

Hot Swap Controllers with Integrated MOSFET

n Internal Power MOSFET and Current Sense Resistor n Controllers for Up to 20A Applications n Output Voltage Soft-Start n Foldback Current-Limited Circuit Breaker with Adjustable Delay n Resistor-Adjustable Circuit Breaker Threshold n Current & Temperature Monitor, Power Good, and Fault Outputs n Undervoltage, Overvoltage, and Overtemperature Protection n Production Tested and Guaranteed SOA n Pin-Compatible Controllers

20A LoadVIN

2.9V to 15V

UV

OV

CurrentMonitor

ADC

Fault Timer Current Limit Adjustmentand Temperature Monitor

HOT SWAP

LTC4234

GUARANTEED SOA

Power Good

Device VIN UV OV CL PG FeaturesDemo Board

Package-Pins(mm × mm)

LTC4214 0V to −16V • • • • 3-Stage OCP, VDS Accelerated Timer NA MSOP-10LT4250 −18V to −80V • • • • 500µs Internal Fault Timer DC429 SO-8, PDIP-8LTC4251 −15V to > −80V • • • 3-Stage OCP, Simple, Small, 6-Pin SOT-23 NA TSOT23-6LTC4252 −15V to > −80V • • • • 3-Stage OCP, VDS Accelerated Timer DC787 MSOP-8/10LTC4253 −15V to > −80V • • • • LTC4252 Features + 3 Sequenced PG NA SSOP-16

n Ideal Diode (ID) for Low Loss Redundant Supply Active ORing, Reverse Current Blocking, and Supply Holdup

n Eliminates Power Schottky Diodes and Heat Sinks n Fast 0.5µs Ideal Diode Turn-On and Turn-Off Time n Current-Limited Circuit Breaker with Adjustable

Delay n Current Monitoring (CM), Power Good, Circuit

Breaker Fault, and Diode Status (DS) Outputs

n Compact Solution for Multiple Supplies n Supports Advanced Mezzanine Card (AMC),

MicroTCA (µTCA), PCI Express (PCIe), CompactPCI (cPCI), and PCI Standards

n Internal MOSFET for Low Current Supply Rails n Circuit Breaker for Each Supply with Coupled

or Independent Turn-Offs on Fault

Hot Swap Controllers with Ideal Diode

Multiple Supply Hot Swap Controllers

VOUT

2.9V to 18V

2.9V to 18V

HOT SWAPHOT SWAP

FAULT

PWRGD

DSTATn

IMON

ON

EN

D2OFFLTC4236

ADC

2

ii

DTMR GND FTMR

VCC1

FAULT

ON1

ON2

GND

VIN1

VIN2

DUAL

VOUT1

VOUT2

Connector Plug-In Card

LTC4224

Device Configuration VIN UV OV

Output

FeaturesDemo Board

Package-Pins(mm × mm)CM DS

LTC4229 ID + HS 2.9V to 18V • • • Prioritizer, Adj Debounce Delay DC2060 4 × 5 QFN-24, SSOP-24LTC4227 2 • ID + HS 2.9V to 18V • 100ms/1.6ms Debounce Options DC1625 4 × 5 QFN-20, SSOP-16LTC4235 2 • ID + HS 9V to 14V • • Preset 12V Power Good Threshold DC2315 4 × 5 QFN-20LTC4236 2 • ID + HS 2.9V to 18V • • • Prioritizer, Adj Debounce Delay DC2314 4 × 5 QFN-28LTC4228 2 • [ID + HS] 2.9V to 18V • • Complete Dual for µTCA Systems DC1899 4 × 5 QFN-28, SSOP-28

Device Supp

lies

VIN UV OV CL PG Inde

pend

ent

FeaturesDemo Board

Package-Pins(mm × mm)

LTC4224 2 1V to 6V • 0 • Simple, Small, Internal Timers DC1364 3 × 2 DFN-10, MSOP-10LTC4221 2 1V to 13.5V • • 2 Sequencing, 2-Level Slow/Fast CB DC1355 SSOP-16LTC4223 2 12V, 3.3V • • 2 AMC, Internal Aux FET, I12V Monitor DC1162 5 × 4 DFN-16, SSOP-16LT4220 2 ±2.7V to ±16.5V • • 1 Supply Tracking Mode DC665 SSOP-16LTC4226 2 4.5V to 44V • • 0 • 3-Selectable CL:CB Ratio DC1627 3 × 3 QFN-16, MSOP-16LTC4230 3 1.7V to 16.5V 3 2-Level Slow/Fast Circuit Breaker DC537 SSOP-20LTC4244 4 ±12V, 5V, 3.3V • • 1 For cPCI, Internal ±12V FETs NA SSOP-20LTC4241 5 ±12V, 5V, 3.3V • • 1 PCI with 3.3VAUX, Internal ±12V FET NA SSOP-20LTC4242 6 12V, 3.3V • • 4 • For 2 PCIe Slots, Internal Aux FETs DC1054 5 × 7 QFN-38, SSOP-36

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